A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
NSN 5996-01-030-5339
NSN 5910-01-547-0666
NSN 5965-01-035-5475
NSN 6685-00-190-8178
NSN 6130-01-049-1805
NSN 7035-01-271-1643
NSN 6150-01-256-7645
NSN 5835-01-647-6426
NSN 2925-00-814-8745
NSN 5930-01-162-2951
NSN 6620-01-057-9621
NSN 6610-01-234-9098